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<h3 class="heading"><span class="type">Paragraph</span></h3>
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<li><p>The product(quotient) of two even(odd) functions is even.</p></li>
<li><p>The product of an even function and an odd function is odd.</p></li>
<li><p>The sum(difference) of two even functions is even.</p></li>
<li><p>The sum(difference) of two odd functions is odd.</p></li>
<li><p>If <span class="process-math">\(f\)</span> is even, then 􏱙<span class="process-math">\(\int_{-a}^a f(x)~ \textrm{d} x=2\int_0^a f(x) \textrm{d} x\text{.}\)</span></p></li>
<li><p>If <span class="process-math">\(f\)</span> is odd, then􏱙 􏱙<span class="process-math">\(\int_{-a}^a f(x)~ \textrm{d} x=0\text{.}\)</span></p></li>
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